Largest cellphone-cancer study to date clarifies little

The largest study to examine a potential link between cellphone use and cancer is already stirring up controversy, two days ahead of its actual release. After many years of ambiguous and sometimes conflicting results, the Interphone study was an attempt to provide a definitive measure of any risks associated with heavy cellphone use. But even the study's authors spent several years arguing over how to interpret the data that came in, before finally producing a report that's due to be published Monday evening, US time. A number of newspapers, however, have released stories on Interphone ahead of its general availability, and they suggest that the final product won't do much to clarify the health risks.